

package org.jetnuke.modules.blog;

import java.util.Iterator;
import java.util.List;
import java.util.Random;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.velocity.VelocityContext;
import org.jetnuke.common.ActionForward;
import org.jetnuke.common.IAction;
import org.jetnuke.common.IAdminInfo;
import org.jetnuke.common.IModuleInfo;
import org.jetnuke.common.IUserInfo;
import org.jetnuke.dao.BlogCategoryDAO;
import org.jetnuke.dao.BlogPostDAO;
import org.jetnuke.dao.DataAccessDriver;
import org.jetnuke.entities.BlogCategory;
import org.jetnuke.util.JetUtil;

public class DelCategory implements IAction {

	int id;
	public ActionForward exec(HttpServletRequest request,
			HttpServletResponse response, VelocityContext vc, IModuleInfo info,
			String op, IUserInfo ui, IAdminInfo ai) throws Exception {
		if(ui==null || ui.getID()<2)
			return null;
		int uid=ui.getID();
		
		
		BlogCategoryDAO bcm=DataAccessDriver.getInst().newBlogCategoryDAO();
		BlogCategory cat=bcm.retrieveByPK(id);
		if(cat.getAID()!=uid)
			return null;
		if(cat.getPARENTID()<0)
			return null;
		List ls=bcm.selectByUser(uid);
		Iterator it=ls.iterator();
		BlogCategory futureCategory=null;
		while(it.hasNext()){
			BlogCategory bc=(BlogCategory)it.next();
			if(bc.getPARENTID()==-1){
				futureCategory=bc;
				break;
			}
		}
		if(futureCategory!=null){
			BlogPostDAO bpm=DataAccessDriver.getInst().newBlogPostDAO();
			bpm.changeCategory(id,futureCategory.getID());
			bcm.deleteCategory(id);
		}
		JetUtil.redirect(vc,response,request.getContextPath()+"/do/blog/categories?rand="+new Random().nextInt());
		return null;
	}
	public void setId(int id) {
		this.id = id;
	}
}
